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## org.jgraph.graph
Class AbstractCellView

    java.lang.Object
      |
      +--org.jgraph.graph.AbstractCellView

All Implemented Interfaces:
  CellView, Serializable

Direct Known Subclasses:
  EdgeView, PortView, VertexView

public abstract class AbstractCellView
extends Object
implements CellView, Serializable

The abstract base class for all cell views.

See Also:
  Serialized Form

Field Summary
`protected AttributeMap` | `allAttributes`
`protected AttributeMap` | `attributes` Hashtable for attributes.
`protected Object` | `cell` Reference to the cell for this view
`protected static GraphCellEditor` | `cellEditor` Editor for the cell.
`protected List` | `childViews` Cached child views.
`protected JGraph` | `graph` Reference to the graph
`protected CellMapper` | `mapper` Reference to the cell mapper for the view
`protected CellView` | `parent` Cached parent view

Constructor Summary
`AbstractCellView(Object cell, JGraph graph, CellMapper mapper)` Constructs a view for the specified model object, and invokes update on the new instance.

Method Summary
`void` | `childUpdated()`
`AttributeMap` | `getAllAttributes()` Returns the attributes of the view combined with the attributes of the corresponding cell.
`AttributeMap` | `getAttributes()` Return the attributes of the view.
`abstract Rectangle2D` | `getBounds()` Returns the bounding rectangle for this view.
`static Rectangle2D` | `getBounds(CellView[] views)` Returns the bounding box for the specified views.
`Object` | `getCell()` Returns the model object that this view represents.
`CellView[]` | `getChildViews()` Returns the child views of this view.
`static CellView[]` | `getDescendantViews(CellView[] views)` Returns all views, including descendants that have a parent in `views` without the PortViews.
`GraphCellEditor` | `getEditor()` Returns a cell editor for the view.
`JGraph` | `getGraph()` Returns the graph associated with the view.
`abstract CellHandle` | `getHandle(GraphContext context)` Returns a cell handle for the view.
`CellMapper` | `getMapper()` Returns the cell mapper associated with the view.
`GraphModel` | `getModel()` Returns the model associated with the view.
`CellView` | `getParentView()` Returns the parent view for this view.
`abstract CellViewRenderer` | `getRenderer()`
`Component` | `getRendererComponent(JGraph graph, boolean selected, boolean focus, boolean preview)` Returns a renderer component, configured for the view.
`boolean` | `intersects(Graphics g, Rectangle2D rect)` Returns true if the view intersects the given rectangle.
`boolean` | `isLeaf()` Returns true if the view is a leaf.
`void` | `refresh(boolean createDependentViews)` Create child views and reload properties.
`void` | `removeFromParent()` Removes this view from the list of childs of the parent.
`protected void` | `scale(double sx, double sy, Point2D origin)` Scale `view` (group) by `sx, sy`.
`AttributeMap` | `setAttributes(AttributeMap change)` Applies `change` to the attributes of the view and calls update.
`void` | `setBounds(Rectangle2D bounds)` Sets the bounds of `view`.
`protected void` | `translate(double dx, double dy)` Translates `view` (group) by `dx, dy`.
`void` | `update()` Update attributes and recurse children.
`protected void` | `updateAllAttributes()` This method implements the merge between the cell's and the view's attributes.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### cellEditor

    protected static GraphCellEditor cellEditor

  Editor for the cell.

### graph

    protected JGraph graph

  Reference to the graph

### mapper

    protected CellMapper mapper

  Reference to the cell mapper for the view

### cell

    protected Object cell

  Reference to the cell for this view

### parent

    protected CellView parent

  Cached parent view

### childViews

    protected List childViews

  Cached child views.

### attributes

    protected AttributeMap attributes

  Hashtable for attributes. Initially empty

### allAttributes

    protected AttributeMap allAttributes

Constructor Detail

### AbstractCellView

    public AbstractCellView(Object cell,
                            JGraph graph,
                            CellMapper mapper)

  Constructs a view for the specified model object, and invokes update on the new instance.

Parameters:
  `cell` - reference to the model object

Method Detail

### getGraph

    public JGraph getGraph()

  Returns the graph associated with the view.

### getModel

    public GraphModel getModel()

  Returns the model associated with the view.

### getMapper

    public CellMapper getMapper()

  Returns the cell mapper associated with the view.

### getCell

    public Object getCell()

  Returns the model object that this view represents.

  Specified by:
    `getCell` in interface `CellView`

### refresh

    public void refresh(boolean createDependentViews)

  Create child views and reload properties. Invokes update first.

  Specified by:
    `refresh` in interface `CellView`

### update

    public void update()

  Update attributes and recurse children.

  Specified by:
    `update` in interface `CellView`

### updateAllAttributes

    protected void updateAllAttributes()

  This method implements the merge between the cell's and the view's attributes. The view's attributes override the cell's attributes with one exception.

### childUpdated

    public void childUpdated()

  Specified by:
    `childUpdated` in interface `CellView`

### getParentView

    public CellView getParentView()

  Returns the parent view for this view.

  Specified by:
    `getParentView` in interface `CellView`

### getChildViews

    public CellView[] getChildViews()

  Returns the child views of this view.

  Specified by:
    `getChildViews` in interface `CellView`

### getDescendantViews

    public static CellView[] getDescendantViews(CellView[] views)

  Returns all views, including descendants that have a parent in `views` without the PortViews. Note: Iterative Implementation using view.getChildViews

### removeFromParent

    public void removeFromParent()

  Removes this view from the list of childs of the parent.

  Specified by:
    `removeFromParent` in interface `CellView`

### isLeaf

    public boolean isLeaf()

  Returns true if the view is a leaf.

  Specified by:
    `isLeaf` in interface `CellView`

### getAttributes

    public AttributeMap getAttributes()

  Return the attributes of the view.

  Specified by:
    `getAttributes` in interface `CellView`

### getAllAttributes

    public AttributeMap getAllAttributes()

  Returns the attributes of the view combined with the attributes of the corresponding cell. The view's attributes override the cell's attributes with the same key.

  Specified by:
    `getAllAttributes` in interface `CellView`

### setAttributes

    public AttributeMap setAttributes(AttributeMap change)

  Applies `change` to the attributes of the view and calls update.

  Specified by:
    `setAttributes` in interface `CellView`

### getBounds

    public abstract Rectangle2D getBounds()

  Returns the bounding rectangle for this view.

  Specified by:
    `getBounds` in interface `CellView`

### getBounds

    public static Rectangle2D getBounds(CellView[] views)

  Returns the bounding box for the specified views.

### setBounds

    public void setBounds(Rectangle2D bounds)

  Sets the bounds of `view`. Calls translateView and scaleView.

### translate

    protected void translate(double dx,
                             double dy)

  Translates `view` (group) by `dx, dy`.

### scale

    protected void scale(double sx,
                         double sy,
                         Point2D origin)

  Scale `view` (group) by `sx, sy`.

### intersects

    public boolean intersects(Graphics g,
                              Rectangle2D rect)

  Returns true if the view intersects the given rectangle.

  Specified by:
    `intersects` in interface `CellView`

### getRendererComponent

    public Component getRendererComponent(JGraph graph,
                                          boolean selected,
                                          boolean focus,
                                          boolean preview)

  Returns a renderer component, configured for the view.

  Specified by:
    `getRendererComponent` in interface `CellView`

### getRenderer

    public abstract CellViewRenderer getRenderer()

### getHandle

    public abstract CellHandle getHandle(GraphContext context)

  Returns a cell handle for the view.

  Specified by:
    `getHandle` in interface `CellView`

### getEditor

    public GraphCellEditor getEditor()

  Returns a cell editor for the view.

  Specified by:
    `getEditor` in interface `CellView`

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Copyright (C) 2003-2004 Gaudenz Alder. All rights reserved.